Security News

NVIDIA fixes high severity flaws affecting Windows, Linux devices
2021-01-08 08:11

NVIDIA has released security updates to address six security vulnerabilities found in Windows and Linux GPU display drivers, as well as ten additional flaws affecting the NVIDIA Virtual GPU management software. NVIDIA has addressed the security issues in all affected software products and platforms with the exception of those tracked as CVE‑2021‑1052, CVE‑2021‑1053, and CVE‑2021‑1056 impacting the Linux GPU Display Driver for Tesla GPUs which will receive an update driver version starting with January 18, 2021.

How to quickly check to see if your Linux server is under a DoS attack from a single IP address
2021-01-07 19:03

Jack Wallen shows you an easy way to determine if your Linux server is under a DDoS attack and how to quickly stop it. How? In this piece I'm going to show you a few commands that can help you discern if your server is being hit by a denial of service attack, which comes from a single IP address and attempts to cripple a website to render its server inaccessible.

Ezuri Memory Loader Abused in Linux Attacks
2021-01-07 19:01

Security researchers at AT&T's Alien Labs have identified multiple malware attacks leveraging the Ezuri memory loader to execute payloads without writing them to disk. Executed directly in memory, without leaving traces on disk, fileless malware is commonly used in attacks targeting Windows systems, but isn't often seen in malware attacks targeting Linux.

Linux malware authors use Ezuri Golang crypter for zero detection
2021-01-07 06:00

Multiple malware authors are using the "Ezuri" crypter and memory loader to make their code undetectable to antivirus products. According to a report released by AT&T Alien Labs, multiple threat actors are using Ezuri crypter to pack their malware and evade antivirus detection.

Linux: How to create a new user with admin privileges
2021-01-06 18:36

Adding a user with admin privileges on Linux is easier than you think. Jack Wallen shows you how.

Windows 10 WSL now can run Linux commands on startup
2021-01-06 17:07

Microsoft now allows users of the Windows Subsystem for Linux to run commands automatically on WSL distribution startup. WSL is a compatibility layer designed by Microsoft to makes it possible for Windows 10 to run Linux binaries in ELF format natively on Windows computers.

New worm turns Windows, Linux servers into Monero miners
2020-12-30 09:40

A newly discovered and self-spreading Golang-based malware has been actively dropping XMRig cryptocurrency miners on Windows and Linux servers since early December. The C2 server is used to host the bash or PowerShell dropper script, a Golang-based binary worm, and the XMRig miner deployed to surreptitiously mine for untraceable Monero cryptocurrency on infected devices.

Why I'm not concerned about the rise in Linux attacks
2020-12-15 18:01

Jack Wallen explains why he's not worried that the rise in popularity of the Linux operating system will mean your open source platforms will be vulnerable to attacks. Linux powers big business-of that there is no debate.

Linux attacks are rising: Why I'm not concerned
2020-12-15 17:57

Jack Wallen explains why he's not worried that the rise in popularity of the Linux operating system will mean your open source platforms will be vulnerable to attacks.

New Windows malware may soon target Linux, macOS devices
2020-12-15 13:50

Newly discovered Windows info-stealing malware linked to an active threat group tracked as AridViper shows signs that it might be used to infect computers running Linux and macOS. The new trojan, dubbed PyMICROPSIA by Unit 42, was discovered while investigating AridViper activity, a group of Arabic speaking cyberspies focusing their attacks on Middle Eastern targets since at least 2011. While PyMICROPSIA is a Python-based malware that specifically targets Windows systems using a Windows binary generated using PyInstaller, Unit 42 has also found code snippets showing that its creators are potentially working on adding multi-platform support.